GBI Method: A Powerful Technique to Study Drying of Complex Shape Solids

  • A. G. Barbosa de LimaEmail author
  • J. M. P. Q. Delgado
  • I. B. Santos
  • J. P. Silva Santos
  • E. S. Barbosa
  • C. Joaquina e Silva
Part of the Advanced Structured Materials book series (STRUCTMAT, volume 48)


This chapter briefly focuses on the theory and applications of drying process (heat and mass transfer) with particular reference to arbitrarily-shaped wet capillary-porous bodies. Here, a modeling based on the liquid diffusion theory and the mathematical formalism to obtain the exact solution of the governing equation via Galerkin-based integral method are presented. The model considers constant thermo-physical properties and convective boundary conditions at the surface of the solid. Applications have been done to different solids of revolution and wheat grain. Predicted results of the average moisture content, average temperature, and moisture content and temperature distributions within the porous solids are presented and discussed, and for particular situations they are compared with experimental drying data.


Drying Analytical Wheat Prolate spheroid 



The authors would like to express their thanks to CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil), CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Brazil), and FINEP (Financiadora de Estudos e Projetos, Brazil) for supporting this work; to the authors of the references in this paper that helped in our understanding of this complex subject, and to the Editors by the opportunity given to present our research in this book.


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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • A. G. Barbosa de Lima
    • 1
    Email author
  • J. M. P. Q. Delgado
    • 2
  • I. B. Santos
    • 3
  • J. P. Silva Santos
    • 1
  • E. S. Barbosa
    • 1
  • C. Joaquina e Silva
    • 1
  1. 1.Department of Mechanical EngineeringFederal University of Campina GrandeCampina GrandeBrazil
  2. 2.LFC—Building Physics Laboratory, Civil Engineering Department, Faculty of EngineeringUniversity of PortoPortoPortugal
  3. 3.Department of PhysicsState University of ParaibaCampina GrandeBrazil

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